KR20100064123A - Safety device for escalator - Google Patents

Abstract

PURPOSE: A safety device for an escalator is provided to accurately prevent objects from being jammed in a gap between a step surface and a riser surface through a prediction. CONSTITUTION: A safety device for an escalator comprises a step sensing unit(5), an object detecting unit(6), a safe boarding notification unit(7), and a safety controller(4). The step sensing unit is installed inside the skirt guard(14) of an escalator. The object detecting unit detects an object(11) adjacent to a riser surface of a step by engaging with the step sensing unit. The safe boarding notification unit informs an escalator user who has the object that it is safe to board the escalator.

Description

Escalator safety device {SAFETY DEVICE FOR ESCALATOR}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a safety device for an escalator, and in particular, to prevent an accident in which a passenger boarding an escalator gets caught in a gap between a step surface and a riser surface of an adjacent step. It relates to the safety device of the escalator.

An accident occurs where a passenger of an escalator pinches, for example, sandals or boots, which are objects of his own, with the riser surface of the stairs adjacent to the stairs surface. This accident causes the escalator's passenger to get stuck in the gap between the staircase and the riser surface of the adjacent staircase when the sandals or boots he carries are hit by the cleat riser of the staircase. The back will not fall out. Thus, the passenger touches a comb plate installed in the hatch and suffers an unexpected injury. Thinking on this escalator has become a social issue in Japan.

8 shows a staircase (step) of the escalator in a perspective view. The escalator 20 runs in the direction of the arrow in the figure. The yellow safety line 8 is installed in the stairs 3a on which the passengers of the escalator 20 ride, in order to urge passengers to be wary of an accident that an object 11 such as sandals or boots possessed by the passenger is caught. . This safety line 8 is a line indicating the skirt guard side dangerous position 9 which promotes attention to an accident caught in the gap between the stairs 3 and the skirt guard 14, and the stairs 3a. And a line indicating an adjacent step side dangerous position 10 for urging caution against an accident caught in the gap between the riser surface 2 of the step 3b adjacent to the step. According to the present invention, a passenger of an escalator rides in this adjacent staircase dangerous position 10 and is caught in a gap of about 5 mm between the stairs 3a and the riser surface 2 of the adjacent stairs 3b. It is targeted.

Conventionally, various measures have been adopted for an accident in which a passenger of the escalator 20 gets on an adjacent staircase dangerous position 10 and is caught in the gap between the stairs 3a and the riser surface 2 of the adjacent stairs 3b. It is becoming. For example, with respect to the passenger of the escalator 20, announcements such as "Please hold the railing and get on the inside of the yellow line of the stairs" repeatedly flow out from the hatch of the escalator 20, so that the passengers can ride safely. Is urging.

In addition, as shown in FIG. 8, the escalator 20 has the step abnormal run detection switch (CRS) 30 which detects abnormal lifting of the stairs 3b of the escalator 20 in the inside of the stairs 3. As shown in FIG. It is installed. That is, the passenger of the escalator 20 rides in the adjacent step side danger position 10, is pinched by the riser surface 2 of the adjacent stairs 3b, and the stairs 3a and the stairs ( When the step with 3b) is reduced, the step 3b is lifted upwards. The staircase abnormal running detection switch 30 detects and lifts the lifted stairs 3b, and the escalator 20 suddenly stops.

On the other hand, Japanese Unexamined Patent Publication No. 05-338980 discloses a safety device for a man conveyor. Here, by the load detection means provided in the edge part of a staircase in a man conveyor, a climb of a passenger to the edge part of a staircase is detected, and a notification means is based on the operation signal output by this detection result. Pay attention to the passengers. In addition, Japanese Utility Model Publication No. 58-56763 discloses a man conveyor stairs dangerous position boarding prevention device. Here, a man conveyor is divided into three sides of the stairway except the riser side of the stairway, so that the passenger can specify the outer periphery danger zone of the stairway. The foot is automatically detected and the passenger is alerted using a broadcast device.

In the present situation, the announcement of a call for attention of the escalator at the entrance is chronic, and the reaction of the passengers is slow and it is not prevented from accidents.

Incidentally, the staircase abnormal running detection switch CRS detects the jamming of the object carried by the passenger, and does not prevent the jamming itself. In addition, when the staircase abnormal running detection switch is operated, the escalator stops suddenly, and further deterioration of the accident can be prevented. However, the sudden stop may cause the passenger or other passengers on the escalator to fall. This is not a good idea.

It is therefore an object of the present invention to provide a safety device for an escalator that accurately predicts and prevents an accident in which an object carried by a passenger is caught in a gap between a step surface and a riser surface of an adjacent step.

The safety device of the escalator which is provided in the skirt guard of the escalator is staircase detection means which detects the passage of the specific location of the staircase side of an escalator; A pair of objects consisting of a light-transmitting part and a light-receiving part which are respectively provided inside the skirt guards of the escalator and detect the object located at a dangerous position on the step surface close to the riser surface of the adjacent staircase in conjunction with the stair detection means. Detection means; Safety ride notification means for notifying a passenger of an escalator carrying the object; And the step detecting means detects the passage of a specific location on the side surface of the stairway, and when the object detecting means detects an object in a dangerous position close to the riser surface of the adjacent step on the step surface, And a safety device control unit for notifying the passenger of the safety boarding means of the ride in a safe position separated from the riser surface of the adjacent stairs on the stairs surface.

Moreover, the safety device of the escalator which concerns on this invention WHEREIN: The said safety device control part detects the passage of the said specific location of the stairs side by the said stairs detection means, and the said object detection means of the stairs which adjoins on the stairs surface. It is preferable to decelerate the escalator to a predetermined speed when an object in a dangerous position close to the riser surface is detected.

Moreover, in the safety device of the escalator which concerns on this invention, it is preferable that the said step detection means detects the stepped part of a passenger side among the steps of the stairs which a said passage passes.

Moreover, it is preferable that the safety apparatus of the escalator which concerns on this invention is a pair of transmission type photoelectric sensor which a light transmission part and a light receiving part which the object detection means can detect the object in a dangerous position on a step surface.

In the safety device of the escalator according to the present invention, it is preferable that the staircase detecting means is a reflection type proximity sensor that can detect passage of a specific place on the side surface of the staircase.

In the safety device of the escalator according to the present invention, when the safety device control unit detects an object on the step surface by the step detection means and detects a part of the step that the object detection means passes, It is preferable to inform the said safe ride notification means to ride the passenger in the safe position on the step surface.

Moreover, the safety device of the escalator which concerns on this invention WHEREIN: The said safety riding notification means is provided in the skirt guard, and aims at the passenger who carries the object in the danger position which is adjacent to the riser surface of the adjacent stairs on the stairs surface. Preferably, the speaker is notified by announcement.

In addition, the safety device of the escalator according to the present invention is a second that the safety boarding notification means is notified by the guide broadcast to the passenger carrying an object in a dangerous position close to the riser surface of the adjacent stairs on the step surface It is preferably a directional speaker.

In addition, the safety device of the escalator according to the present invention, the safety riding notification means on the step surface by lighting up the step surface that the passenger holding the object in the dangerous position close to the riser surface of the adjacent stairs to light up. It is preferable that it is a spotlight.

In addition, the safety device of the escalator according to the present invention, the safety riding notification means is provided in the vicinity of the handrail of the escalator, the passenger holding the object in a dangerous position on the step surface adjacent to the riser surface of the adjacent stairs. It is preferable that it is a rlight which turns on and reports.

As described above, according to the safety device of the escalator of the present invention, it is possible to accurately predict and prevent an accident where an object carried by a passenger is caught in the gap between the stairs surface and the riser surface of the adjacent stairs.

EMBODIMENT OF THE INVENTION Below, embodiment of the safety device of the escalator which concerns on this invention is described in detail using drawing.

The schematic structure of one embodiment of the safety device of an escalator is shown in FIG. 1 from the upper surface of the escalator, and is shown by the top view of one block diagram. The safety device 1 of the escalator is housed in a safety control box 13 provided inside the skirt guard 14 of the escalator 20. The safety device 1 of the escalator is a safety device control unit 4, a stair detection sensor 5 which is a stair detection means, an object detection sensor 6 which is an object detection means, and a notification speaker 7 which is a safety riding notification means. It is composed. Here, the safety device control part 4 installed in the safety control box 13 is shown by a block diagram. Moreover, the yellow safety line 8 is generally provided on the surface of the stairs 3 of the escalator 20, and it displays the adjacent step side dangerous position 10 with respect to a passenger.

2, the schematic structure of one Embodiment of the safety device of an escalator is shown by the cross section of an escalator. The staircase 3 of the escalator 20 rises or descends on the stair rail 15 by the stair front wheel 16 and the stair rear wheel 17 in a space sandwiched by the skirt guard 14. In FIG. 2, as shown by the arrow in the figure, the escalator 20 shows the case where it is raising. The upper surface of the staircase 3 is supported by a triangular stair frame 12 connecting the staircase front wheel 16 and the staircase rear wheel 17. The safety device 1 of the escalator is accommodated in the safety control box 13 shown by the broken line in FIG. 2, and the safety device control part 4 (not shown), the stair detection sensor 5, the object detection sensor 6, It consists of a notification speaker 7.

The installation position of the safety device 1 of an escalator is shown in FIG. FIG. 3 (a) shows the plane of the general escalator 20, and FIG. 3 (b) shows the side of the general escalator 20. FIG. The arrow in FIG. 3 shows the moving direction of the escalator 20, and this escalator 20 is called ascending escalator 20. As shown in FIG. Then, the passenger gets on the escalator 20 from the boarding gate 25 and gets off at the getting off gate 26. In the present embodiment, the safety device 1 of the escalator is provided at a position of about 2 m from the exit 26 of the escalator 20 on both sides of one upper portion of the escalator 20 that rises. This position is a position just before the step 3, which ascends obliquely, moves in the horizontal direction. This is because, for example, in the case of the escalator 20 at the time of the rise, when the stairs 3 move in the horizontal direction, the step between the stairs 3a and the stairs 3b is reduced and an accident is likely to occur. However, the installation position of the safety device 1 of this escalator is not limited to this position, The other positions of the escalator 20 may be sufficient. The escalator safety device 1 may be provided at a plurality of positions along the escalator 20. In addition, when the escalator 20 is used together up and down, the safety device 1 of the escalator can be installed in at least two places (addition of the safety device 1 'of the escalator).

The stairs detection sensor 5 shown in FIG. 1 and FIG. 2 is a reflection type proximity sensor which can detect that the specific location of the side surface of the stairs 3 to pass passes. In this embodiment, this stair detection sensor 5 can be provided in the position which the stair front part 18 of a passenger side can detect. This reflective proximity sensor detects the presence or absence of the step leading edge 18 which is about 0 to 10 mm.

The object detection sensor 6 shown in FIG. 1 and FIG. 2 consists of a light-transmitting part and a light-receiving part which can detect the object 11, such as sandals or shoes, in the adjacent step side dangerous position 10 on the surface of the stairs 3, and FIG. It is a pair of transmissive photoelectric sensors. The object detection sensor 6 detects the presence or absence of the object 11 by blocking light by the object 11.

The safety device control unit 4 detects that the stair detection sensor 5 has passed through the stair tip 18, and the object detection sensor 6 has an adjacent stairway dangerous position on the surface of the staircase 3 ( In the case of detecting an object 11 such as sandals or shoes in 10), the notification speaker 7 is placed in a safe position spaced apart from the riser surface 2 on the surface of the stairs 3 with respect to the passenger. Inform boarding.

The enlarged cross section of the safety device 1 of an escalator is shown in FIG. The object detection sensor 6 detects the object 11 on the lines n and n 'along the moving direction of the stairs 3 in FIG. However, on this line (n, n '), in addition to the object 11 to be detected, for example, the upper surface of the staircase 3, the riser surface 27, the stair frame 12, or the like passes through and passes the light. Block it. On the other hand, the stair detection sensor 5 detects the object 11 on the line (m, m ') along the moving direction of the stairs 3 in FIG. The object 11 regarding the escalator 20 other than the stairs tip part 18 does not pass in the range of about 0-30 mm from the stairs detection sensor 5 on this line m and m '. Therefore, the stair detection sensor 5 can grasp | ascertain the position of the step 3 of the escalator 20 which moves sequentially. In addition, even if the moving speed of the escalator 20 changes, the staircase detection sensor 5 can catch the movement of the staircase 3 following it.

Accordingly, the detection of the object 11 by the object detection sensor 6 is assured by interlocking with the detection of the stair tip 18 by the step detection sensor 5. That is, at the moment when the stair detection sensor 5 detects the stair tip 18, the object detection sensor 6 is separated by L1 in the moving direction of the staircase 3 as shown in FIG. 4. This distance L1 does not change when the speed of the escalator 20 is constant because the stair detection sensor 5 and the object detection sensor 6 are fixed inside the skirt guard 14. In addition, the object detection sensor 6 can detect the object 11, such as sandals and shoes, over the space | interval of L2 in the moving direction of the stairs 3, as shown in FIG. If it exceeds this range, the surface of the stairs 3 or the riser surface 27 will be detected. From the positional relationship between the stair detection sensor 5 and the object detection sensor 6, the detection of the step end portion 18 by the stair detection sensor 5 and the detection of the object 11 of the object detection sensor 6 are linked. In this way, the detection timing of the object 11 of the object detection sensor 6 can be adjusted to ensure reliable detection.

However, the stair detection sensor 5, which is a stair detection means, detects the object 11 carried by the passenger on the surface of the staircase 3, and the step 3 through which the object detection sensor 6 passes. There is a case to detect a part of. For example, the stair detection sensor 5 is detected by the passenger standing at the skirt guard side dangerous position 9 adjacent to the skirt guard surface 2 on the surface of the stairs 3b, and at the timing described above. This is the case where a part of the stairs 3 through which the object detection sensor 6 passes is detected. In this case, the safety device control unit 4 informs the safety riding notification means 7 of the passengers in the safe position on the plane of the stairs 3b. That is, the safety device control part 4 of this embodiment may detect not only the adjacent step side dangerous position 10 with respect to the object 11, but also the case where it is in the skirt guard side dangerous position 9. .

The notification speaker 7 notifies the passenger of the escalator 20 carrying the object 11, such as sandals or shoes. The notification speaker 7 is housed in a safety control box 13 installed inside the skirt guard 14 of the escalator 20, so that the sandals, shoes, etc., carried thereon, are adjacent to the stairs side. The passenger in position 10 can be notified directly to warn them. In addition, when the passenger is a child or an infant, it can be notified and warned by a companion such as a parent accompanying the escalator 20.

FIG. 5 shows a circuit configuration in one embodiment of the safety device 1 of the escalator. First, when the escalator 20 is in the ascending operation, the relay 21 for the escalator up is turned on, and when the escalator 20 is in the descending operation, the relay for the escalator down ( 22) turns on. When the detection by the stair detection sensor 5 and the detection by the object detection sensor 6 are turned on in an AND condition, the detection relay A 23 picks up. Then, the notification speaker 7 is activated by the contact A 24, and notification to the passenger is issued. This notification speaker 7 may be a buzzer.

Fig. 6 shows an embodiment of another safe riding notification means in the safety device of the escalator. 7 shows a circuit configuration including an embodiment of another safety riding notification means in the safety device of the escalator. Here, safety riding notification means such as the superdirectional speaker guidance broadcasting apparatus 31, the spotlight 32, the warning lamp 33, etc. are shown.

When the super-directional speaker guidance broadcasting device 31 installed on the ceiling of the escalator 20 is connected and the contact is turned on, a recorded warning message such as "Please get on the center of the stairs" is displayed as the safety device of the escalator. In the air flows for a certain time toward the passenger (28). Thus, the passenger 28 recognizes that it is a notification for himself.

When the spotlight 32 provided in the ceiling part of the escalator 20 is connected, and a contact is turned on, the spotlight 32 lights up for a predetermined time toward the passenger 28 standing near the position of the safety device of the escalator. Thus, the passenger 28 recognizes that the notification by the notification speaker 7 is directed to him.

When the warning lamp 33 installed near the railing of the escalator 20 is connected and the contact is turned on, the warning lamp 33 lights up toward the passenger 28 standing near the position of the safety device 1 of the escalator. . Thus, the passenger 28 recognizes that the notification by the notification speaker 7 is directed to him.

When the escalator 20 is inverter control and variable speed, as shown in FIG. 7, when the escalator deceleration instruction 34 is connected and a contact is turned on, the escalator 20 will decelerate for a fixed time and will become low speed. By decelerating the escalator 20 in this manner, the passenger 28 can afford to cope with the dangerous condition.

1 is a plan view including some block diagrams showing a schematic configuration of one embodiment of a safety device of an escalator according to the present invention;

2 is a cross-sectional view of an escalator showing a schematic configuration of one embodiment of a safety device of an escalator;

3 is a plan view and a side view showing the installation position of the safety device of the escalator;

4 is an enlarged sectional view of the safety device of the escalator;

5 is a block diagram showing a circuit configuration in one embodiment of the safety device of the escalator;

FIG. 6 is an explanatory diagram showing an embodiment of another safe riding notification means in the safety device of the escalator; FIG.

7 is a block diagram showing a circuit configuration including an embodiment of another safe riding notification means in the safety device of the escalator;

8 is a perspective view showing a step (step) of the escalator.

<Explanation of symbols for the main parts of the drawings>

1: safety device 2, 27: riser surface

3: staircase 4: safety device control unit

5: stair detection sensor 6: object detection sensor

7: advice speaker 8: yellow safety line

9: Dangerous position on the skirt guard side 10: Dangerous position on the adjacent step side

11: object 13: safety control box

14: skirt guard 18: stair tip

20: escalator 31: super-directional speaker announcement device

32: spotlight 33: beacon

Claims (10)

Stair detection means provided in a skirt guard of the escalator and detecting that a specific location of a step side of the escalator passes; It is provided inside each of the skirt guards of the escalator, and comprises a light-transmitting unit and a light-receiving unit for detecting an object in a dangerous position close to the riser surface of an adjacent staircase on the step surface in conjunction with the stair detection means. A pair of object detecting means; Safety ride notification means for notifying a passenger of an escalator carrying the object; And When the said step detection means detects the passage of the specific location of the side of a stairway, and the object detection means detects the object in the dangerous position near the riser surface of the adjacent step on the step surface, the said safety | security And a safety device control unit that informs the passenger boarding means of the boarding of the passenger at a safe position separated from the riser surface of the adjacent stairs on the stairs surface. 2. The risk device according to claim 1, wherein the safety device control unit detects the passage of the stairway detection means through a specific location on the side of the stairway, and the object detection unit is close to the riser surface of the adjacent stairway on the stairway. The safety device of the escalator, characterized in that for decelerating the escalator to a predetermined speed when the object in the position is detected. 2. The safety device of an escalator according to claim 1, wherein said stair detection means detects a stair leading end portion of the passenger side of the step side that passes. 2. The safety device of an escalator according to claim 1, wherein said object detecting means is a pair of transmission type photoelectric sensor comprising a light transmitting portion and a light receiving portion capable of detecting an object at a dangerous position on a stepped surface. 2. The safety device of an escalator according to claim 1, wherein said stair detection means is a reflection type proximity sensor that can detect passage of a specific place on the side of a staircase. The safety riding control unit according to claim 1, wherein the safety device control unit detects an object on the step surface and detects a part of the stairs that the object detecting means passes through, and the safety riding control unit notifies the safety riding control unit. A safety device for an escalator, wherein the passenger is informed of riding at a safe position on a step surface. The safety riding notification means is provided in a skirt guard and notified by a guide broadcast to a passenger carrying an object in a dangerous position close to a riser surface of an adjacent staircase on a step surface. Safety device of escalator, characterized in that the speaker. The safety boarding means according to claim 1, characterized in that the safety boarding notification means is a superdirectional speaker that notifies the passenger who carries an object in a dangerous position close to the riser surface of an adjacent stairway on a stairway by guide broadcast. Safety device of escalator. 2. The safety boarding means according to claim 1, wherein the safety boarding notification means lights up and notifies a stepped surface of a passenger carrying an object in a dangerous position close to a dangerous position close to a riser surface of an adjacent step on a stepped surface. Safety device of escalator, characterized in that the spotlight. The warning light according to claim 1, wherein the safety riding notification means is provided near the railing of the escalator, and lights a warning light for a passenger carrying an object in a dangerous position near a riser surface of an adjacent staircase on a staircase. The safety device of the escalator, characterized in that (patlite).

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